—Have you been to the United States?
—Yes, only once. I ________ there only for seven days.
| A．have stayed | B．was staying |
| C．stayed | D．had stayed |
The internet was flooded with a game called the Ice Bucket Challenge（冰桶挑战）, ________ raise awareness for a disease called ALS.
| A．aims to | B．aim to |
| C．aiming to | D．was aimed to |
The school makes every effort to treat students as individuals and to help each one to achieve their full ________.
| A．profit | B．anniversary |
| C．sympathy | D．potential |
Chinese ________ nearly one-third of the 7, 300 international high school students studying in the US in 2013, according to a recent report.
| A．let out | B．accounted for |
| C．adapted to | D．subscribed to |
________ nearly all our money, we couldn’t afford to stay at a hotel.
| A．Having spent | B．To spend |
| C．Spent | D．To have spent |
His advice was not adopted, for the manager thought it was not quite ________.
| A．in case | B．in return |
| C．in place | D．in common |